ml system design Interview Questions

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ml system design
eBay
Amazon
Etsy

eBay ML System Design: Post-Checkout Recommendations

Design a low-latency post-checkout recommendation system for eBay: retrieval, ranking, features, training, and metrics. Prepare for ML interviews with examples.

Machine Learning Engineer, Data ScientistMid Level
ml system design
Google
YouTube
TikTok

Google ML System Design: Fuzzy Video Deduplication

Design a real-time fuzzy video deduplication system using embedding models and ANN search. Learn tradeoffs, scalability, and appeal workflows—prepare for interviews.

Machine Learning Engineer, ML EngineerMid Level
ml system design
LinkedIn
Google
Yelp

LinkedIn ML System Design: Real-Time Nearby Recommendations

Build a low-latency, scalable ML system to recommend nearby places in real time. Get architecture, dataflow, personalization tips, and interview follow-ups.

Machine Learning Engineer, Data ScientistMid Level
ml system design
Meta
Facebook

Meta ML System Design: Real-Time Personalized Feed Ranking

Build a real-time personalized ranking system for Meta's news feed. Learn low-latency serving, online updates, cold-start handling, diversity, and A/B testing.

Machine Learning Engineer, ML EngineerMid Level
ml system design
Microsoft
Google
Meta

Microsoft ML System Design: Local Sports Team Recommender

Scalable recommender for local sports teams: data ingestion, candidate generation, ranking, real-time updates, and metrics. Prep for ML design interviews.

Software Engineer, ML EngineerMid Level
ml system design
Netflix
Meta
Amazon

Netflix ML System Design: Real-time Sentiment Tracking

Design a scalable real-time social media sentiment tracking system for Netflix. Learn architecture, streaming NLP, time-series aggregation, alerting. Prepare.

Software Engineer, Machine Learning EngineerMid Level
ml system design
OpenAI
Google
Microsoft

OpenAI ML System Design: Scalable Enterprise RAG

Prepare to design a scalable enterprise RAG system for document Q&A and customer support. Review architecture, retrieval, security, and deployment tips for OpenAI ML interviews.

Machine Learning Engineer, ML Systems EngineerMid Level
ml system design
Palantir
Spotify
SoundCloud

Palantir ML System Design: Scalable Music Recommender

Plan a scalable, low-latency music recommendation service for streaming platforms. Learn architecture, APIs, data models, and real-time updates for Palantir ML interviews.

Software Engineer, ML EngineerMid Level
ml system design
PayPal
Stripe
Square

PayPal ML System Design: Real-Time Fraud Detection Engine

Prepare for PayPal ML interviews: design a low-latency, scalable real-time fraud detection pipeline. Learn components, latency tactics, scoring, and follow-ups.

Machine Learning Engineer, Data ScientistMid Level
ml system design
Pinterest
Instagram
Twitter

Pinterest ML System Design: Real-Time Personalized Feed

Design a Pinterest-style real-time feed ranking system using embeddings, low-latency serving, and streaming events. Learn architecture choices and next steps.

Software Engineer, ML EngineerMid Level
ml system design
Roblox
Unity
Epic Games

Roblox ML System Design: Real-time Game Recommendations

Build a low-latency Roblox recommender that matches users to games using lifetime average playtime. Learn streaming aggregation, candidate generation and ranking.

Machine Learning Engineer, Recommender EngineerMid Level
ml system design
Snapchat
TikTok
Meta

Snapchat ML System Design: Real-Time Multimodal Moderation

Design a Snapchat real-time multimodal harmful content detection system—architecture, latency, scalability, moderation integration and feedback loops. Prepare.

Machine Learning Engineer, Data ScientistMid Level

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